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3 September, 13:09

a solution needs to be cooled at a rate of - 7°C per minute. How long will it take for the solutions temperature to change from 0° C to - 42° C?

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  1. 3 September, 14:21
    0
    6 minutes.

    Step-by-step explanation:

    There is a difference of 42 between 0° and - 42° (given), and 42°/7° per minute = 6 minutes.
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